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Mr. D

Medlem
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Posts posted by Mr. D

  1. 25 minutes ago, said Bebop:

    Holy Mole! Congratulations. I remember you mentioned That you had sat on your wishlist. That Dreams Come True are the best ones ...Santa integrin:

    Can we expect a new recording series type "Mr. D. Goes Baroque Live" : Question:

     

    Indeed. You have an excellent memory.

     

    The Nagra is for a small secondary system. It will be full analogue: one turntable, one tape deck, an integrated SET amp and a pair of loudspeakers. More in the coming weeks. 

  2. On 09/09/2018 at 8:54 AM, Bebop said:

    Wow ...! Congratulations. : 41:

     

    Tenor has been a wet dream since the first saw and heard them when i worked in Montreal.

     

     

     

     

    The beautiful tenor 175 S stereo amp. Not as mighty as the Krell mono blocks but highly musical on solo, chamber and small orchestral pieces not forgetting the vocal ones. It was collecting dust at someone's home ... well someone who has a full Aries Cerat systems : D

     

    L1040137_zpsiziaup7s.jpg

  3. 23 hours ago, said Apexorca:

    @Mr. D  Thats right! : D I'v got One Of Those before and I loved it. In thwart spoke about it Because it really was "another kind" of remote control. Especially at that time. I do not think it'sa that kind of "cheap plastic". The frame is some metal and very strong and just slightly bigger than a credit card. Though it's just a few mm thick, its' very strong Easy to use. Are they still possible to buy?

    My first one was used Several years but it Accidently broke and I got a new one. It was the soldier with the text Krell unit some years later. 

     

     

    "Cheap Plastic" Compared to the Several remote controls I have had from Krell (I have had Several systems from Krell - amps and preamp) but indeed very user friendly. Quite frankly I do not know as I've got the two remote controls when i got my preamp (it Seems That We Have The Same preamp). My local tech has very good direct contacts with Krell. I will ask him to enquire.

  4. On 2018-06-13 at 18:45, calle_jr said:

     

    These upgrades are all interesting, especially the reproduction cards, the vumeter-bridge and to exchange the transformers.

    Did you DISCUSS to upgrade the power supply with your tech?

     

     

    All the capacitors of the power supply have been upgraded. The voltage regulation of the tape transport section has been upgraded During The intial overhaul. My tech was convinced That the best improvement would be obtained with his custom-made regulation card for the audio section.

  5. I have two sets of reproducing cards and three different stabilizer cards ie voltage regulation for the audio section.

     

    The first set of repro cards is based on the original architecture but with much higher-grade components: new capacitors, metal film resistors, most recent generation of transistors, special JFET, etc.

     

    Original card prior upgrade:

     

    L1030998_zpst7my7h5m.jpg

     

     

    After the upgrade:

     

    L1040082_zpswzup8t21.jpg

     

     

     

    As the upgrades were performed Gradually, I can confirm there is a significant improvement Compared to the original cards: improved dynamics, reduced noise floor and much faster transients. In That respect, my technician Claims That the special military JFET is playing a key role:

     

    L1040085_zps5ayife7l.jpg

     

     

    The second set of repro cards is heavily modified by MTSL. A picture with the MTSL card (top) and the card modified by my tech (bottom)

     

    L1040110_zpsbstqts5h.jpg

     

    The MTSL card is actually «Warmer» and less analytical.

     

    My tech upgraded the original stabilizer card During the initial overhaul so I can not confirm Whether there were audible improvements.

     

    Before overhaul:

     

    05% 20Stabilizer% 20PCB% 20Avant_zpsgpbftb7

     

    After overhaul:

     

    06% 20Stabilizer% 20PCB% 20Apregraves_zpsqu

     

     

    I got the MTSL stabilizer card and there were significant sonic improvements Compared to the modified Studer card:

     

    L1040001_zps5n2qywwx.jpg

     

    When looking at the MTSL card, my technician told me That he Could design something even better and I put him on the challenge. He developed a brand new design with impressive measurements:

     

    L1040122_zpsqv9rvtck.jpg

     

    2_zpsjtnd7eau.jpg

     

    After many trials, I came to the conclusion That MTSL repro cards work best with the MTSL stabilizer card and the Same Applies to the set from my technician.

     

    I have an audiophile / warmer set (MTSL) and a more analytical / detailed set (my tech's). Do I have a preference? In absolute terms, I would say That I have a slight bias for my tech's cards though the MTSL sets is wonderful on harpsichord.   

     

    Swapping cards is done in a breeze.

     

    There are still few upgrades in the pipeline:

     

    My technician is Currently working on a Improving the signal path in the vumeter bridge with the replacement of the switches by relays, new potentiometer, new circuit boards, etc.

     

    I have improved tape sensor from MTSL That my tech will install. It is supposed to Improve the Wow and Flutter.

     

    Finally, the balanced outputs will be modified by having the transformers being removed and Replaced by a Class A design.

     

     

     

  6. 7 hours ago, said calle_jr:

     

    On the digital side is the TAD 's multi-player D600 , the music server Aurender X100 and the Bel Canto DAC .
     

     

    The TAD D600 is actually used as the DAC for the Aurender music server.

     

    The three boxes music server is basically an Aurender X100 on steroids:

    - The digital signal from the Aurender goes to the TAD through the Bel Canto USB interface Which Also acts as a reclocker.

    The box beneath the Bel Canto USB interface is the custom-made linear power supply for the Aurender so I could bypass the switch mode power supply.

     

    There is actually a fourth Little Box That does not show on the picture: an Ethernet filter from Etalon Acoustics in Order to Enhance the signal when i stream. I have a subscription to Qobuz Which offers high resolution streaming (up to 192/24).

     

     

  7. The Allnic H3000V is a great phono stage. Though it is a full-tube stage, it is very quiet and noise free. It  can  drive very low output MC cartridges with ease (my transfiguration Proteus cartridge has an output of 0.2 mV).

     

    However it requires some tweaking in order to get the best out of it.

     

    Changing the stock rectifier tube is a must. Originally, I  opted for a military Philips tube (5R4GYS) and the differences were Substantial. I then swapped For A KR Audio 5U4G Lampizator Anniversary version. The change is not subtle: more and tighter bass, better harmonics and a Wider soundstage.

     

    L1030954_zpspcuqrs8j.jpg

     

    The KR Audio rectifier tube into the separate power supply:

     

    L1030955_zpsx1pczauj.jpg

     

    Originally, the tube stage was fitted with 4 Siemens E810F amplifier tubes. I also received from the distributor a set of Mullard tubes to replace the Siemens ones but They sound the same. I found the NOS Telefunken which  are much better. In order to reduce microphonics, there is a silicone suspension for the amplifier tubes and it requires to use a specific tool to extract the tubes.

    L1030968_zpshckoxwy2.jpg

     

     

    L1030971_zpsf4kx1z9r.jpg

  8. 2 minutes ago, calle_jr said:

     

    A French Harmonia Mundi with pieces de Viole You Quatrieme Livre 1717 - Great music with baroque guitar, viola da gamba and harpsichord.

     

     

    The record label is actually Astrée. This was a side project to the main sister record label Valois. Jordi Savall has regained the rights on the  recordings he made for Astrée and they are now available (in cd and downloads) from Alia Vox, his own label. 

  9. On 2018-05-26 at 13:11, Apexorca said:

    In the pictures you can get the idea That the speakers are too close to the side walls. That was something you heard?

     

    I do not want to hijack Calle's report but I can give some explanation as, after all, this is has been my listening room for 23 years.

     

    The Fact That the loudspeakers are close to the sidewalls has no impact. There are Several factors coming into play:

     

    - The walls are not even surfaces. The handmade bricks are acting as largescale diffusors

    - There is barely any first reflection point on the right side wall. There are actually Several openings in the wall

    - The fist reflection point on the left sidewall is tamed by a SMT diffuser Which allows to place the loudspeaker close to the wall

     

    Loudspeakers placement was validated by comprehensive acoustic measurements (before and after placement of the SMT diffusors).

     

    L1040128_zpsnvj2gyzv.jpg

     

    L1040129_zpsezev0zoz.jpg

  10. 43 minutes ago, said flyer:

     

    Hello, I was not aware of that. Guess you musthave bothering issues and if so, which one is better?

     

    Actually the analogue version and the one digitally remastered on a high resolution file are great. But I prefer the version by Ito Ema Which was recorded in analogue and digital. I have all versions high resolution digital file, vinyl and tapes. And I will spare you the different versions that i have on harpsichord (on LP, CD and tapes).

  11. 1 hour ago, said flyer:

     

    Dvorak, Boccherini (very beautiful), D'Astorga, Scarlatti, Haydn, Part ...

     

    writing a Stabat Mater version was (and still is as Pärt shows) very fasionable for every self respecting composer one would say. Do not know why Bach or Handel did not come to write one (as far as I know ...).

     

    Dear Flyer,

     

    Because Stabat Mater was Introduced by the Catholic Church after the Council of Trent Which was a response to the Reform lead by Luther. Bach and Handel were Protestants.  

     

    kind regards

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